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UNITED STATES PATENT OEEIOE.l

MARSHALL T. LINCOLN, OF WASHINGTON, DISTRICT OF COLUMBIA.

SEWING-TABLE FOR BOOK-BINDERS.

lSpecication forming part of Letters Patent No. 59,240, dated October 30, 1866.

To all whom Ait 'may concern:

Beit known that I, MARSHALL T. LINcoLN, of Washington city, in the county of Washington, and in the District of Columbia, have invented a new and useful Sewing-Table for Book-Binders; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, forming a part of this speciication, in which- Figure 1 is a front elevation, the red lines showing the bench at its lowest point. Fig. 2 is a plan View.

My invention is intended to supply a Want felt by book-binders; and consists in making the sewing-benchv of book-binders vertically adjustable, so that the upper sheets of a book may always be kept iu or nearly in the most convenient plane for the sewer.

The present custom is to use a stationary table, and the operator continues to sew the folded sheets to the cords until she has a pile of from eighteen to twenty-four inches high. In order to sew to the greatest advantage, the hand of the operator must move in or nearly in the plane of the sheet which is beiugsewed, and the common mode of accomplishing this is to put blocks or boxes of increasing thickness in the operators chair, so as to raise up and keep the hand in the plane of the sheet to be sewed. For the purpose of dispensing with the blocks, and for saving time in blocking, I have devised an adjustable bench, operated simply by turning a screw.

In the drawings, A shows the common table; B, the vertically-adjustable sewing-bench, upon which the sheets composing the book to be sewed are placed. This bench is provided with the tension-frame C, for stretching the cords which are scwed to the sheets. In this respect there is no difference from the common sewing-bench.

The table B is provided with a groove, a, at each end, which allows the table to slide up and down the guiding-tongues b.

D is the operating-screw, made on a fast pitch, and having its upper end provided with a crank-wheel, E, and turning in a step-bearing fast to the under side of the table, while the lower part of the screw turns in a nut, G, fast to the frame of the table.

As the height of the pile of sheets increases, the operator turns the screw, which depresses the bench a little, and as other sheets are added other turns are made, so that by this simple device the sheet being sewed is always in the plane most convenient to the hand of the operator.

When the book has been sewed it is removedV from the bench, which is then turned up to the position required for sewing the first sheets.

'Having fully described one good mode of constructing and applying my invention, what I claim as new, and desire to secure by Letters Paten t, is-

The adjustable sewing bench A B, constructed and operating substantially as described.

In testimony that I claim the above-described invention I have hereunto signed my name this 12th day of June, 1866.

MARSHALL T. LINCOLN.

Witnesses:

A. L. CARRIER, J o C. CLAYTON. 

